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Ultra-fast cooling rates mean:

– in short – better data!

HOW IT WORKS:

During cryocooling, the formation of crystalline ice from solvent on and within delicate protein crystals easily damages their structure causing poor diffraction. By maximizing the cooling rate of plunge-cooled crystals, the solvent can be trapped as amorphous ice, and prevent the formation of damaging ice crystals. The NANUQ™ cryocooling technology cools samples over 10x faster than hand-plunging techniques. Faster cooling means less time for the nucleation and growth of ice crystals. In addition, lower cryoprotectant concentrations are needed to obtain ice-free samples.

A common cryocooling technique for plunge cooling crystals is to hand-plunge them directly into an open dewar containing liquid nitrogen (LN2). With this method, crystals travel through a region of cold gas above the liquid. This cold gas is nearly the temperature of LN2. Crystals are often cooled to near LN2 temperatures, prior to even contacting the surface liquid nitrogen. The heat transfer in a gas is much slower than when the sample is in direct contact with the liquid, therefore the cooling in the cold-gas allows for significant nucleation and growth of crystalline ice on and within crystals. Using NANUQ™ technology we can remove the layer of cold gas above the LN2, maximizing the cooling rate of each sample, by going from ambient temperature directly into contact with the LN2. This ensures that heat transfer occurs within the LN2. With rapid cryocooling, water molecules are trapped as amorphous ice before crystalline ice can develop.

Automatic Puck Loading

Efficient Liquid Nitrogen Dewar

High-efficiency insulation and a large liquid nitrogen capacity allows for hours of sample cooling without the need of refilling or worry of ice accumulation.

Patented Technology

Plunge environment controls are used to define or remove cold gas layers to maintain a controlled temperature plunge path for samples. Maximizing cooling rates by avoiding unwanted cooling/ice formation that can result from cold gas above LN2.